Next Article in Journal
Achieving Highly Efficient Atmospheric CO2 Uptake by Artificial Upwelling
Next Article in Special Issue
Influence of Graphene Nanosheets on Rheology, Microstructure, Strength Development and Self-Sensing Properties of Cement Based Composites
Previous Article in Journal
Understanding the Emergence and Social Acceptance of Electric Vehicles as Next-Generation Models for the Automobile Industry
Article Menu
Issue 3 (March) cover image

Export Article

Open AccessFeature PaperArticle
Sustainability 2018, 10(3), 663; https://doi.org/10.3390/su10030663

Effects of Environment in the Microstructure and Properties of Sustainable Mortars with Fly Ash and Slag after a 5-Year Exposure Period

Departamento de Ingeniería Civil, Universidad de Alicante, Ap. Correos 99, 03080 Alicante, Spain
*
Author to whom correspondence should be addressed.
Received: 30 January 2018 / Revised: 22 February 2018 / Accepted: 27 February 2018 / Published: 1 March 2018
(This article belongs to the Special Issue Sustainable Cementitious Materials for the Construction Industry)
View Full-Text   |   Download PDF [2125 KB, uploaded 1 March 2018]   |  

Abstract

Nowadays, getting a more environmentally sustainable cement production is one of the main goals of the cement industry. In this regard, the use of active additions, like fly ash and ground granulated blast-furnace slag, has become very popular. The behaviour, in the short-term, of cement-based materials with those additions is well-known when their hardening is produced under optimum conditions. However, real structures are exposed to different environments during long periods, which could affect the development of microstructures and the service properties of cementitious materials. The objective of this work is to analyse the effects in the long-term (up to 5 years approximately) produced by the exposure to different non-optimum laboratory conditions in the microstructure, mechanical and durability properties of mortars made with slag and fly ash commercial cements. Their performance was compared to that observed for ordinary Portland cement (OPC) mortars. The microstructure has been analysed using mercury intrusion porosimetry. The effective porosity, the capillary suction coefficient, the chloride migration coefficient and mechanical strengths were analysed too. According to the results, mortars prepared using slag and fly ash sustainable commercial cements, exposed to non-optimum conditions, show a good performance after 5-years hardening period, similar or even better than OPC mortars. View Full-Text
Keywords: ground granulated blast-furnace slag; fly ash; long-term exposure; environment; temperature; relative humidity ground granulated blast-furnace slag; fly ash; long-term exposure; environment; temperature; relative humidity
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Ortega, J.M.; Tremiño, R.M.; Sánchez, I.; Climent, M.Á. Effects of Environment in the Microstructure and Properties of Sustainable Mortars with Fly Ash and Slag after a 5-Year Exposure Period. Sustainability 2018, 10, 663.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Sustainability EISSN 2071-1050 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top